Improvement in car-ventilation



G. H. STOREY.

CAR-VENTILATDR.

No 170,783 Patented Dec. '7. 1875.

NVENTOR W'TNESSES: Gum H.867?

N-FETERS, PNOTOLITHOGRAPHER, WASHINGTON. D (2v UNITED STATES PATENT OEFIGE.

GEORGE sToREY, OF LA PoRTE, INDIANA.

IMPROVEMENT IN CAR -VENTlLl-\T|ON.

Specification forming part of Letters Patent N 0. 170,783, dated December 7, 1875; application filed November 12, 1875.

To all whom it may concern:

Be it known that I, GEORGE H. SToREY, of La Porte, in the county of La Porte and State of Indiana, have invented certain Improvements in Ventilators for Railroad-0ars, of which the following is a specification:

This invention contemplates the employment of a portion of the power produced by the exhaust of the locomotive to effectthe withdrawal of the impure air from the passenger-cars, and a consequent ventilation of the same.

A system of pipes, communicating with the cars to be ventilated, is connected to the 10- comotive in such manner that the vacuum produced by the exhaust will create a current of air through the pipes to the locomotive.

The accompanying drawing, which forms a part of this specification, shows my invention as applied to a single passenger-car and the locomotive, illustrating how it may be applied to an entire train.

In the said drawing, A is the locomotive, B the tender, and C a passenger car, all shown in dotted lines, as they do not differ in any respect from those ordinarily in use, and for this reason I do not deem it necessary to describe them with particularity. I apply to each car to be ventilated a stand-pipe, D, located, preferably, about midway of the length of the car, and at the side. This stand-pipe is provided with several regulating draft openin gs or registers d d, at different points in its length, so that, by opening a proper one, air may be withdrawn from the car at different levels. The stand-pipe passes down through the floor of the car, and communicates with a horizontal pipe, E, which runs the entire length of the car, and is fitted at each end, for convenience of connecting with other cars, with a flexible coupling-tube, G, provided with a suitable coupling, H, which may be of any of the approved forms.

This flexible tube I prefer to make of rubber, and to stiffen it with exterior fillets or bands of metal in the form of rings, to secure it against collapse when the vacuum is produced.

The tender is fitted in like manner with a pipe, E, and couplings, and the locomotive is provided with a pipe, K, which leads into the fire-box below the grate, debouching into the air-chamber or ash-pit, which, it is well known, is in locomotives provided with dampers, so that it may be wholly or partially closed.

When the pipes K E E are coupled together the exhaust of the locomotive will be felt throughout the series, and will cause an air-current more or. less forcible, according to the force of the exhaust and the amount of air admitted through the ordinary channel.

The air drawn from the cars is not suificiently impure to produce any marked deleterious effect upon the fire, even if the entire supply came from this source; but it is the fact that only a portion of the air for the fire is taken from the cars, and consequently the impurity will not be in the least felt.

Where unusually long trains are to be fitted with this apparatus it may, however, be desirable to connect the pipe K to the exhaust at a point beyond the firefor example, at the lower portion of the smoke-stack below the exhaust-pipe. In this way the current will be produced, and none of the impure air carried through the fire; but I prefer to connect the pipe K to the ash-pit, as shown, because it is less expensive, more convenient and, practically, in most cases, quite as goo By my invention the cars, while in motion and subject to dust and cinders, are perfectly ventilated without the necessity of keeping the doors and windows open.

When the cars are standing still they will ventilate themselves sufficiently, or, at least, it will do no harm at such time to raise a window or open a door for the brief space necessary.

Although I do not limit myself to any particular size pipe, I recommend that the pipes throughout be made, say, four inches in diameter; and I prefer to make the pipes E of galvanized sheet-iron, smoothly jointed, and securely attached to the car by suitable stays and brackets, such as any good mechanic will as specified, leading to the cars, and causing 1 know how to construct. a cur-rent from the cars tothe engine, as de- 6 Having thus described my invention, I claim scribed.

as new and. desire to secure by Letters Pat GEO. H. STOREY.

ent Witnesses The combination, with the exhaust of a 10- J. E. BRADLEY,

comotive, of a system of pipes, substantially T. H. BOYD. 

